Natural moisturising factor constituents in South African nursing students
Background The majority of South African healthcare workers are Black Africans with dark‐pigmented skin. Studies on how the markers of skin barrier function and natural moisturising factor (NMF) compare between dark and light‐pigmented skin are limited. Quantifying NMF in a nursing student populatio...
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| Vydané v: | Contact dermatitis Ročník 90; číslo 4; s. 378 - 384 |
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| Hlavní autori: | , , , , |
| Médium: | Journal Article |
| Jazyk: | English |
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Oxford, UK
Blackwell Publishing Ltd
01.04.2024
Wiley Subscription Services, Inc |
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| ISSN: | 0105-1873, 1600-0536, 1600-0536 |
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| Abstract | Background
The majority of South African healthcare workers are Black Africans with dark‐pigmented skin. Studies on how the markers of skin barrier function and natural moisturising factor (NMF) compare between dark and light‐pigmented skin are limited. Quantifying NMF in a nursing student population during their practical training at university may provide valuable insight into their potential susceptibility to skin conditions associated with low NMF.
Objectives
The objectives of this study were to quantify and compare NMF content of Black African, Mixed Race and White nursing students from their dominant dorsal hand.
Methods
Forty‐nine White, 32 Black African and 5 Mixed Race nursing students participated in this study. Tape strip samples were collected from the participants' dominant dorsal hand and NMF content was measured, including histidine (HIS), pyrrolidone carboxylic acid (PCA), trans‐urocanic acid (t‐UCA) and cis‐urocanic acid (c‐UCA), as well as cytokines interleukin‐1 alpha (IL‐1α) and interleukin‐1 receptor antagonist (IL‐1RA).
Results
No statistically significant differences in PCA, t‐UCA, c‐UCA, IL‐1α or IL‐1RA were found between Black African and White nursing students. HIS was significantly (p = 0.001) higher in White nursing students when compared to Black African students. The ratio of tot‐UCA/HIS was significantly higher in Black Africans (p = 0.0002) when compared to White nursing students.
Conclusion
No significant differences were established in NMF content between White and Black African nursing students, other than HIS which was significantly higher in White students than in Black African students. Different HIS levels between the racial groups suggest variation in histidase activity which may be related to skin pH and pigmentation. This finding may suggest that nursing students at the beginning of their careers may have similar susceptibility to skin diseases related to NMF.
NMF content, including pyrrolidone carboxylic acid (PCA), trans‐urocanic acid (t‐UCA) and cis‐urocanic acid (c‐UCA), as well as cytokines interleukin‐1 alpha (IL‐1α) and interleukin‐1 receptor antagonist (IL‐1RA), was not significantly different between White and Black African nursing students. Histidine (HIS) content was significantly higher in White nursing students. |
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| AbstractList | The majority of South African healthcare workers are Black Africans with dark-pigmented skin. Studies on how the markers of skin barrier function and natural moisturising factor (NMF) compare between dark and light-pigmented skin are limited. Quantifying NMF in a nursing student population during their practical training at university may provide valuable insight into their potential susceptibility to skin conditions associated with low NMF.BACKGROUNDThe majority of South African healthcare workers are Black Africans with dark-pigmented skin. Studies on how the markers of skin barrier function and natural moisturising factor (NMF) compare between dark and light-pigmented skin are limited. Quantifying NMF in a nursing student population during their practical training at university may provide valuable insight into their potential susceptibility to skin conditions associated with low NMF.The objectives of this study were to quantify and compare NMF content of Black African, Mixed Race and White nursing students from their dominant dorsal hand.OBJECTIVESThe objectives of this study were to quantify and compare NMF content of Black African, Mixed Race and White nursing students from their dominant dorsal hand.Forty-nine White, 32 Black African and 5 Mixed Race nursing students participated in this study. Tape strip samples were collected from the participants' dominant dorsal hand and NMF content was measured, including histidine (HIS), pyrrolidone carboxylic acid (PCA), trans-urocanic acid (t-UCA) and cis-urocanic acid (c-UCA), as well as cytokines interleukin-1 alpha (IL-1α) and interleukin-1 receptor antagonist (IL-1RA).METHODSForty-nine White, 32 Black African and 5 Mixed Race nursing students participated in this study. Tape strip samples were collected from the participants' dominant dorsal hand and NMF content was measured, including histidine (HIS), pyrrolidone carboxylic acid (PCA), trans-urocanic acid (t-UCA) and cis-urocanic acid (c-UCA), as well as cytokines interleukin-1 alpha (IL-1α) and interleukin-1 receptor antagonist (IL-1RA).No statistically significant differences in PCA, t-UCA, c-UCA, IL-1α or IL-1RA were found between Black African and White nursing students. HIS was significantly (p = 0.001) higher in White nursing students when compared to Black African students. The ratio of tot-UCA/HIS was significantly higher in Black Africans (p = 0.0002) when compared to White nursing students.RESULTSNo statistically significant differences in PCA, t-UCA, c-UCA, IL-1α or IL-1RA were found between Black African and White nursing students. HIS was significantly (p = 0.001) higher in White nursing students when compared to Black African students. The ratio of tot-UCA/HIS was significantly higher in Black Africans (p = 0.0002) when compared to White nursing students.No significant differences were established in NMF content between White and Black African nursing students, other than HIS which was significantly higher in White students than in Black African students. Different HIS levels between the racial groups suggest variation in histidase activity which may be related to skin pH and pigmentation. This finding may suggest that nursing students at the beginning of their careers may have similar susceptibility to skin diseases related to NMF.CONCLUSIONNo significant differences were established in NMF content between White and Black African nursing students, other than HIS which was significantly higher in White students than in Black African students. Different HIS levels between the racial groups suggest variation in histidase activity which may be related to skin pH and pigmentation. This finding may suggest that nursing students at the beginning of their careers may have similar susceptibility to skin diseases related to NMF. The majority of South African healthcare workers are Black Africans with dark-pigmented skin. Studies on how the markers of skin barrier function and natural moisturising factor (NMF) compare between dark and light-pigmented skin are limited. Quantifying NMF in a nursing student population during their practical training at university may provide valuable insight into their potential susceptibility to skin conditions associated with low NMF. The objectives of this study were to quantify and compare NMF content of Black African, Mixed Race and White nursing students from their dominant dorsal hand. Forty-nine White, 32 Black African and 5 Mixed Race nursing students participated in this study. Tape strip samples were collected from the participants' dominant dorsal hand and NMF content was measured, including histidine (HIS), pyrrolidone carboxylic acid (PCA), trans-urocanic acid (t-UCA) and cis-urocanic acid (c-UCA), as well as cytokines interleukin-1 alpha (IL-1α) and interleukin-1 receptor antagonist (IL-1RA). No statistically significant differences in PCA, t-UCA, c-UCA, IL-1α or IL-1RA were found between Black African and White nursing students. HIS was significantly (p = 0.001) higher in White nursing students when compared to Black African students. The ratio of tot-UCA/HIS was significantly higher in Black Africans (p = 0.0002) when compared to White nursing students. No significant differences were established in NMF content between White and Black African nursing students, other than HIS which was significantly higher in White students than in Black African students. Different HIS levels between the racial groups suggest variation in histidase activity which may be related to skin pH and pigmentation. This finding may suggest that nursing students at the beginning of their careers may have similar susceptibility to skin diseases related to NMF. BackgroundThe majority of South African healthcare workers are Black Africans with dark‐pigmented skin. Studies on how the markers of skin barrier function and natural moisturising factor (NMF) compare between dark and light‐pigmented skin are limited. Quantifying NMF in a nursing student population during their practical training at university may provide valuable insight into their potential susceptibility to skin conditions associated with low NMF.ObjectivesThe objectives of this study were to quantify and compare NMF content of Black African, Mixed Race and White nursing students from their dominant dorsal hand.MethodsForty‐nine White, 32 Black African and 5 Mixed Race nursing students participated in this study. Tape strip samples were collected from the participants' dominant dorsal hand and NMF content was measured, including histidine (HIS), pyrrolidone carboxylic acid (PCA), trans‐urocanic acid (t‐UCA) and cis‐urocanic acid (c‐UCA), as well as cytokines interleukin‐1 alpha (IL‐1α) and interleukin‐1 receptor antagonist (IL‐1RA).ResultsNo statistically significant differences in PCA, t‐UCA, c‐UCA, IL‐1α or IL‐1RA were found between Black African and White nursing students. HIS was significantly (p = 0.001) higher in White nursing students when compared to Black African students. The ratio of tot‐UCA/HIS was significantly higher in Black Africans (p = 0.0002) when compared to White nursing students.ConclusionNo significant differences were established in NMF content between White and Black African nursing students, other than HIS which was significantly higher in White students than in Black African students. Different HIS levels between the racial groups suggest variation in histidase activity which may be related to skin pH and pigmentation. This finding may suggest that nursing students at the beginning of their careers may have similar susceptibility to skin diseases related to NMF. Background The majority of South African healthcare workers are Black Africans with dark‐pigmented skin. Studies on how the markers of skin barrier function and natural moisturising factor (NMF) compare between dark and light‐pigmented skin are limited. Quantifying NMF in a nursing student population during their practical training at university may provide valuable insight into their potential susceptibility to skin conditions associated with low NMF. Objectives The objectives of this study were to quantify and compare NMF content of Black African, Mixed Race and White nursing students from their dominant dorsal hand. Methods Forty‐nine White, 32 Black African and 5 Mixed Race nursing students participated in this study. Tape strip samples were collected from the participants' dominant dorsal hand and NMF content was measured, including histidine (HIS), pyrrolidone carboxylic acid (PCA), trans‐urocanic acid (t‐UCA) and cis‐urocanic acid (c‐UCA), as well as cytokines interleukin‐1 alpha (IL‐1α) and interleukin‐1 receptor antagonist (IL‐1RA). Results No statistically significant differences in PCA, t‐UCA, c‐UCA, IL‐1α or IL‐1RA were found between Black African and White nursing students. HIS was significantly (p = 0.001) higher in White nursing students when compared to Black African students. The ratio of tot‐UCA/HIS was significantly higher in Black Africans (p = 0.0002) when compared to White nursing students. Conclusion No significant differences were established in NMF content between White and Black African nursing students, other than HIS which was significantly higher in White students than in Black African students. Different HIS levels between the racial groups suggest variation in histidase activity which may be related to skin pH and pigmentation. This finding may suggest that nursing students at the beginning of their careers may have similar susceptibility to skin diseases related to NMF. NMF content, including pyrrolidone carboxylic acid (PCA), trans‐urocanic acid (t‐UCA) and cis‐urocanic acid (c‐UCA), as well as cytokines interleukin‐1 alpha (IL‐1α) and interleukin‐1 receptor antagonist (IL‐1RA), was not significantly different between White and Black African nursing students. Histidine (HIS) content was significantly higher in White nursing students. |
| Author | Plessis, Johannes Lodewykus Franken, Anja Kezic, Sanja Jakasa, Ivone Young, Monica |
| Author_xml | – sequence: 1 givenname: Monica orcidid: 0000-0002-5275-8249 surname: Young fullname: Young, Monica organization: North‐West University – sequence: 2 givenname: Johannes Lodewykus orcidid: 0000-0001-5122-8492 surname: Plessis fullname: Plessis, Johannes Lodewykus organization: North‐West University – sequence: 3 givenname: Sanja orcidid: 0000-0002-1063-4547 surname: Kezic fullname: Kezic, Sanja organization: University of Amsterdam – sequence: 4 givenname: Ivone orcidid: 0000-0002-7961-4069 surname: Jakasa fullname: Jakasa, Ivone organization: University of Zagreb – sequence: 5 givenname: Anja orcidid: 0000-0001-9774-4759 surname: Franken fullname: Franken, Anja email: anja.franken@nwu.ac.za organization: North‐West University |
| BackLink | https://www.ncbi.nlm.nih.gov/pubmed/38254239$$D View this record in MEDLINE/PubMed |
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| Keywords | pyrrolidone carboxylic acid tertiary education cis-urocanic acid natural moisturising factor trans-urocanic acid |
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The majority of South African healthcare workers are Black Africans with dark‐pigmented skin. Studies on how the markers of skin barrier function... The majority of South African healthcare workers are Black Africans with dark-pigmented skin. Studies on how the markers of skin barrier function and natural... BackgroundThe majority of South African healthcare workers are Black Africans with dark‐pigmented skin. Studies on how the markers of skin barrier function and... |
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| SubjectTerms | Biomarkers Carboxylic acids cis‐urocanic acid Cytokines Dermatitis, Allergic Contact Dermatology Health risks Histidine Humans Inflammation Interleukin 1 Receptor Antagonist Protein Medical personnel natural moisturising factor Nursing Nursing education Pigmentation pyrrolidone carboxylic acid Racial differences Skin - chemistry Skin diseases South Africa Statistical analysis Students Students, Nursing tertiary education trans‐urocanic acid Ultraviolet Rays Urocanic Acid - analysis Urocanic Acid - chemistry |
| Title | Natural moisturising factor constituents in South African nursing students |
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