Sökning: onr:"swepub:oai:DiVA.org:uu-90230" > Transepidermal wate...
Fältnamn | Indikatorer | Metadata |
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000 | 03227naa a2200397 4500 | |
001 | oai:DiVA.org:uu-90230 | |
003 | SwePub | |
008 | 030416s2003 | |||||||||||000 ||eng| | |
009 | oai:prod.swepub.kib.ki.se:1949165 | |
024 | 7 | a https://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-902302 URI |
024 | 7 | a https://doi.org/10.1203/01.PDR.0000055777.25933.982 DOI |
024 | 7 | a http://kipublications.ki.se/Default.aspx?queryparsed=id:19491652 URI |
040 | a (SwePub)uud (SwePub)ki | |
041 | a engb eng | |
042 | 9 SwePub | |
072 | 7 | a ref2 swepub-contenttype |
072 | 7 | a art2 swepub-publicationtype |
100 | 1 | a Ågren, Johanu Uppsala universitet,Institutionen för kvinnors och barns hälsa4 aut0 (Swepub:uu)johaagre |
245 | 1 0 | a Transepidermal water loss in developing rats :b Role of aquaporins in the immature skin |
264 | 1 | c 2003 |
338 | a print2 rdacarrier | |
520 | a In the extremely preterm infant, high transepidermal water loss (TEWL) can result in severe dehydration. TEWL has been attributed to the structural properties of the epidermis but might also be influenced by mechanisms that facilitate water transport. To investigate whether aquaporins (AQP) may be involved in the extreme losses of water through immature skin, we examined the presence and cellular distributions of AQP-1 and AQP-3 in embryonic and adult rat skin by immunohistochemistry. The expression of AQP mRNA in skin was analyzed with the use of semiquantitative reverse transcription-PCR. In rat pups of different embryonic (E) and postnatal (P) ages (days), TEWL and skin hydration were measured. AQP-1 was detected in dermal capillaries, and AQP-3 was abundant in basal epidermal layers. Both AQP displayed several times higher expression in embryonic than in adult skin. TEWL was highest at embryonic day 18 (E18) (133 +/- 18 g/m2h) and lower at E20 (25 +/- 1 g/m2h) and P4 (9 +/- 2 g/m2h). Skin hydration measured as skin electrical capacitance paralleled TEWL, being highest in fetal skin (794 +/- 15 pF at E18) and decreasing to 109 +/- 11 pF at E20 and to 0 +/- 0 pF at P4. We conclude that, as in infants, water loss through the skin of rats decreases markedly with maturation during the perinatal period. The expression and cellular localization of the AQP are such that they might influence skin hydration and water transport and contribute to the high losses of water through the immature skin. | |
653 | a MEDICINE | |
653 | a MEDICIN | |
700 | 1 | a Zelenin, Sergeyu Karolinska Institutet4 aut |
700 | 1 | a Håkansson, Mattias4 aut |
700 | 1 | a Eklöf, Ann-Christine4 aut |
700 | 1 | a Aperia, Anitau Karolinska Institutet4 aut |
700 | 1 | a Nejsum, Lene N.4 aut |
700 | 1 | a Nielsen, Sören4 aut |
700 | 1 | a Sedin, Gunnaru Perinatal, neonatal och barnkardiologisk forskning/Sedin4 aut0 (Swepub:uu)gunsedin |
710 | 2 | a Uppsala universitetb Institutionen för kvinnors och barns hälsa4 org |
773 | 0 | t Pediatric Researchg 53:4, s. 558-565q 53:4<558-565x 0031-3998x 1530-0447 |
856 | 4 8 | u https://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-90230 |
856 | 4 8 | u https://doi.org/10.1203/01.PDR.0000055777.25933.98 |
856 | 4 8 | u http://kipublications.ki.se/Default.aspx?queryparsed=id:1949165 |
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