Pavlovic, Mladen; Schaller, André; Steiner, Bernhard; Berdat, Pascal; Carrel, Thierry; Pfammatter, Jean-Pierre; Ammann, Roland A; Gallati, Sabina (2005). Gender modulates the expression of calcium-regulating proteins in pediatric atrial myocardium. Experimental biology and medicine, 230(11), pp. 853-9. Maywood, N.J.: Society for Experimental Biology & Medicine
Full text not available from this repository.A differential expression of sarcoplasmic reticulum calcium-ATPase (SERCA2a) and phospholamban (PLB) characterizes the remodeling process in heart failure and atrial arrhythmias in adult patients. Gender is known to modulate the course and prognosis of different forms of heart disease. We hypothesized that gender plays a role in molecular changes of myocardial calcium regulating components already in childhood. Moreover, we studied the influence of volume overloaded (VO) on SERCA2a and PLB in pediatric patients. Quantitative reverse transcription-polymerase chain reaction was used to measure mRNA expression of SERCA2a and PLB in atrial myocardium from 30 pediatric patients (12 girls, 18 boys). Eighteen patients had VO right atria, and 12 patients had not-overloaded atria (NO). Protein expression was studied by Western blot. In the entire population, SERCA2a and PLB expression was not different between girls and boys. If hemodynamic overload was taken into account, SERCA2a mRNA expression was significantly reduced in the VO group compared with the NO group (P = 0.021). The VO versus NO difference was restricted to boys, which corresponds to a highly significant interaction of gender versus VO status (P = 0.002). The PLB to SERCA2a protein ratio was significantly lower in girls (P = 0.028). The decrease in SERCA2a mRNA expression in VO atrial myocardium and the PLB to SERCA2a ratio of protein expression was modulated by gender in this pediatric population. To our knowledge, this study is the first to show the impact of gender on the differential expression of calcium-regulating components in pediatric cardiac patients.
Item Type: |
Journal Article (Original Article) |
|---|---|
Division/Institute: |
04 Faculty of Medicine > Department of Gynaecology, Paediatrics and Endocrinology (DFKE) > Clinic of Paediatric Medicine |
UniBE Contributor: |
Schaller, André |
ISSN: |
1535-3702 |
Publisher: |
Society for Experimental Biology & Medicine |
Language: |
English |
Submitter: |
Anette van Dorland |
Date Deposited: |
04 Oct 2013 15:13 |
Last Modified: |
05 Dec 2022 14:22 |
PubMed ID: |
16339750 |
Web of Science ID: |
000233862800010 |
URI: |
https://boris.unibe.ch/id/eprint/32311 (FactScience: 197375) |
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