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Age-related changes in parvalbumin in the heart of female rats. 2010

Uraporn Vongvatcharanon, and Wandee Udomuksorn, and Surapong Vongvatcharanon, and Prasert Sobhon
Department of Anatomy, Prince of Songkla University, Hat-Yai, Thailand. uraporn.v@psu.ac.th

Changes of parvalbumin protein levels and immunolocalisation during the postnatal development of the female rat heart were investigated in order to determine if they were correlated with age-related changes in cardiac function. Hearts from newborn, 3-month-old (young), 6-month-old (young adult) and 12-month-old (adult) female Wistar rats were processed for immunohistochemical localization of parvalbumin and for Western blotting assay. Parvalbumin was detected by both methods in all age groups from newborn to 12-month-old rats. In the newborn rat heart, parvalbumin immunoreactivity did not fully fill the sarcoplasm of the cardiac myocytes and the amount of parvalbumin was low compared to the adult levels. In contrast, in 3-12-month-old rats, strong parvalbumin immunoreactivity was detected throughout the sarcoplasm of all cardiac myocytes and the amount of parvalbumin increased with increasing age (from newborn to adult). Our study indicates that an increase of parvalbumin levels in the female rat heart with increasing age may be associated with maintenance of proper relaxation of the cardiac myocytes needed to cope with the increasing workload of the heart during postnatal growth.

UI MeSH Term Description Entries
D007150 Immunohistochemistry Histochemical localization of immunoreactive substances using labeled antibodies as reagents. Immunocytochemistry,Immunogold Techniques,Immunogold-Silver Techniques,Immunohistocytochemistry,Immunolabeling Techniques,Immunogold Technics,Immunogold-Silver Technics,Immunolabeling Technics,Immunogold Silver Technics,Immunogold Silver Techniques,Immunogold Technic,Immunogold Technique,Immunogold-Silver Technic,Immunogold-Silver Technique,Immunolabeling Technic,Immunolabeling Technique,Technic, Immunogold,Technic, Immunogold-Silver,Technic, Immunolabeling,Technics, Immunogold,Technics, Immunogold-Silver,Technics, Immunolabeling,Technique, Immunogold,Technique, Immunogold-Silver,Technique, Immunolabeling,Techniques, Immunogold,Techniques, Immunogold-Silver,Techniques, Immunolabeling
D010320 Parvalbumins Low molecular weight, calcium binding muscle proteins. Their physiological function is possibly related to the contractile process. Parvalbumin,Parvalbumin B
D005260 Female Females
D000375 Aging The gradual irreversible changes in structure and function of an organism that occur as a result of the passage of time. Senescence,Aging, Biological,Biological Aging
D000818 Animals Unicellular or multicellular, heterotrophic organisms, that have sensation and the power of voluntary movement. Under the older five kingdom paradigm, Animalia was one of the kingdoms. Under the modern three domain model, Animalia represents one of the many groups in the domain EUKARYOTA. Animal,Metazoa,Animalia
D015153 Blotting, Western Identification of proteins or peptides that have been electrophoretically separated by blot transferring from the electrophoresis gel to strips of nitrocellulose paper, followed by labeling with antibody probes. Immunoblotting, Western,Western Blotting,Western Immunoblotting,Blot, Western,Immunoblot, Western,Western Blot,Western Immunoblot,Blots, Western,Blottings, Western,Immunoblots, Western,Immunoblottings, Western,Western Blots,Western Blottings,Western Immunoblots,Western Immunoblottings
D017208 Rats, Wistar A strain of albino rat developed at the Wistar Institute that has spread widely at other institutions. This has markedly diluted the original strain. Wistar Rat,Rat, Wistar,Wistar Rats
D051381 Rats The common name for the genus Rattus. Rattus,Rats, Laboratory,Rats, Norway,Rattus norvegicus,Laboratory Rat,Laboratory Rats,Norway Rat,Norway Rats,Rat,Rat, Laboratory,Rat, Norway,norvegicus, Rattus
D018507 Gene Expression Regulation, Developmental Any of the processes by which nuclear, cytoplasmic, or intercellular factors influence the differential control of gene action during the developmental stages of an organism. Developmental Gene Expression Regulation,Embryologic Gene Expression Regulation,Gene Expression Regulation, Embryologic,Regulation of Gene Expression, Developmental,Regulation of Gene Expression, Embryologic,Regulation, Gene Expression, Developmental,Regulation, Gene Expression, Embryologic
D032383 Myocytes, Cardiac Striated muscle cells found in the heart. They are derived from cardiac myoblasts (MYOBLASTS, CARDIAC). Cardiomyocytes,Muscle Cells, Cardiac,Muscle Cells, Heart,Cardiac Muscle Cell,Cardiac Muscle Cells,Cardiac Myocyte,Cardiac Myocytes,Cardiomyocyte,Cell, Cardiac Muscle,Cell, Heart Muscle,Cells, Cardiac Muscle,Cells, Heart Muscle,Heart Muscle Cell,Heart Muscle Cells,Muscle Cell, Cardiac,Muscle Cell, Heart,Myocyte, Cardiac

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