A comparative review of cutaneous pH

Matousek, Jennifer L.; Campbell, Karen

doi:10.1046/j.1365-3164.2002.00312.x

Cited by 115 publications

(122 citation statements)

References 51 publications

(187 reference statements)

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“…The methods in question are also becoming increasingly popular in veterinary medicine, especially in scientific research. Biophysical skin parameters (TEWL, SH, skin pH) have been assessed in dogs, cats, horses and laboratory animals (Matousek and Campbell 2002, Watosn et al 2002, Popiel and Nicpoń 2004, Fluhr et al 2006, Yoshihara et al 2007, Shimada et al 2008, Szczepanik et al 2011, 2012, Gołyński et al 2014. The most commonly applied parameter has been TEWL, and most of the studies have concentrated on dogs.…”

Section: Introductionmentioning

confidence: 99%

Influence of horse breed on transepidermal water loss

Szczepanik¹,

Wilkołek²,

Adamek³

et al. 2016

Polish Journal of Veterinary Sciences

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Non-invasive methods of skin condition assessment include, among others, the evaluation of transepidermal water loss (TEWL). The aim of the study was to examine whether TEWL values depend on horse breed. The study was conducted on four breeds: "Felin" ponies (FP) (n=16), Polish koniks (PK) (n=15), Polish cold-blooded horses (PcbH) (n=11) and Wielkopolska horses (WH) (n=12). It was found that horse breed influences TEWL values. In the neck region, statistically significant differences were found between PK and FP (p=0.006), and PK and WH (p=0.0005). In the lumbar region, there were statistically significant differences between FP and PK (p=0.0009), FP and PcbH (p=0.0016) as well as between PK and WH (p=0.000037), and PcbH and WH (p=0.0006). In the inguinal region statistically significant differences were found between FP and PK (p=0.0003), FP and PcbH (p=0.0005), PK and WH (p=0.009) and PcbH and WH (p=0.006). In the lip region statistically significant differences were observed between FP and PK (p=0.013) as well as between PK and PcbH (p=0.029) and PK and WH (p=0.009). In the examination of TEWL animal breed should be taken into consideration. The non-significant differences found in three of the examined body regions may suggest that these regions are the most adequate for TEWL assessment.

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Section: Introductionmentioning

confidence: 99%

Influence of horse breed on transepidermal water loss

Szczepanik¹,

Wilkołek²,

Adamek³

et al. 2016

Polish Journal of Veterinary Sciences

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“…Recently, much research involving the assessment of skin biophysical parameters has been published (Dirschka et al 2005, Fluhr et al 2006, Hightower et al 2008, Oh and Oh 2009, Cornegliani et al 2011. Much attention has been given to the assessment of these parameters in dogs (Beco et al 2000, Matousek et al 2002, Watson et al 2002, Young et al 2002, Hester et al 2004, Yoshihara et al 2004, Oh and Oh 2009, Shimada et al 2009, Hightower et al 2010, Lau-Gillard et al 2010, Ohmori et al 2010, Cornegliani et al 2011, Marshala 2012. Some papers tackled the issue of measuring the parameters in cats (Bourdeau et al 2004, Vidal et al 2009, Szczepanik et al 2011) and horses (Meyer andNeurand 1991, Szczepanik et al 2012).…”

Section: Introductionmentioning

confidence: 99%

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

Szczepanik¹,

Wilkołek²,

Pluta³

et al. 2013

Polish Journal of Veterinary Sciences

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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/hm 2 ), while the highest values were observed in the lip region (30.98 g/hm 2 ). 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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“…We hypothesized that subtype 3D isolates of M. pachydermatis would selectively grow on skin with a pH that was higher than normal. In particular, the pH of canine skin with activated apocrine secretion is reported to be more alkaline than that of healthy canine skin, with a pH ranging from 8.2 to 9.0 [4]. In addition, clinical signs of canine Malassezia dermatitis usually include alkaline waxy exudates, which enhance the growth of M. pachydermatis.…”

mentioning

confidence: 99%

Genotyping of <i>Malassezia pachydermatis</i> Isolates from Canine Healthy Skin and Lesional Skin of Atopic Dermatitis in Japan, Korea and Taiwan

Koike

Kano

Nagata³

et al. 2013

The Journal of Veterinary Medical Science

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ABSTRACT. Isolates of the yeast Malassezia pachydermatis obtained from skin samples of healthy dogs and of dogs with atopic dermatitis in Japan, Taiwan and Korea were molecularly characterized using intergenic pacer 1 (IGS1) region analysis. The percentage of IGS1 subtype isolates detected in healthy skin was as follows: 1A (6%), 1B (27%), 1C (11%), 2A (6%), 2B (6%), 3A (11%), 3B (6%), 3C (3%) and 3D (24%). In contrast, the most prevalent isolates detected in skin lesions of atopic dermatitis were subtype 3D in Japan and Taiwan and subtype 3C in Korea. All subtype isolates grew well on acidic medium (pH 6). However, subtype 3C and 3D isolates grew better than the other subtype isolates on medium at pH 8. KEY The yeast Malassezia pachydermatis has been molecularly classified into three major groups (1, 2 and 3) with 10 subtypes (1A, 1B, 1C, 1D, 2A, 2B, 3A, 3B, 3C and 3D) for epidemiological studies [8]. In a previous study in Japan, subtype 3D isolates of M. pachydermatis were obtained more frequently from canine skin lesions of atopic dermatitis than from healthy canine skin. Moreover, the subtype 3D isolates grew much better on alkaline medium than the non-3D subtype isolates, indicating that the growth of specific subtypes of this yeast has a high dependence on the pH of the medium [3]. We hypothesized that subtype 3D isolates of M. pachydermatis would selectively grow on skin with a pH that was higher than normal. In particular, the pH of canine skin with activated apocrine secretion is reported to be more alkaline than that of healthy canine skin, with a pH ranging from 8.2 to 9.0 [4]. In addition, clinical signs of canine Malassezia dermatitis usually include alkaline waxy exudates, which enhance the growth of M. pachydermatis.In the present study, we investigated the characteristics of additional isolates of M. pachydermatis that were obtained from dogs in Japan, Taiwan and Korea in 2010 and 2011, in order to confirm the above-described pH-dependence of growth [3].M. pachydermatis isolates were obtained from 24 dogs without skin disease (all from Japan) and from 42 dogs with skin lesions of atopic dermatitis (11 from Japan, 11 from Korea and 20 from Taiwan). Atopic dermatitis was diagnosed according to Scott et al. [6] and Olivry et al. [5]. All patient dogs had typical lesions with greasy or waxy exudates. Samples were obtained from healthy skin (24 dogs) and from skin lesions of atopic dermatitis (42 dogs). Each sample was derived from at least 3 areas of the external ear, paw, and abdominal regions and samples were cultured using CHROMagar Malassezia medium (CHROMagarm, Paris, France) [2].Isolates of M. pachydermatis(n=182) were identified phenotypically based on morphology and on their ability to grow on medium with no lipid supplementation [1]. The isolates were divided into two groups: Group I consisted of 72 (3 strains per 1 dog) isolates collected from the healthy skin of 24 healthy dogs, and Group II consisted of 110 (2 or 3 isolates per 1 patient) isolates collected from the atopic dermatitis ...

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A comparative review of cutaneous pH

Cited by 115 publications

References 51 publications

Influence of horse breed on transepidermal water loss

Influence of horse breed on transepidermal water loss

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

Genotyping of <i>Malassezia pachydermatis</i> Isolates from Canine Healthy Skin and Lesional Skin of Atopic Dermatitis in Japan, Korea and Taiwan

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