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PMID:18166684

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Citation

Li, YY, O, WS and Tang, F (2007) Effect of aging on the expression of adrenomedullin and its receptor component proteins in the male reproductive system of the rat. J. Gerontol. A Biol. Sci. Med. Sci. 62:1346-51

Abstract

This study investigated the levels of adrenomedullin (AM) and the gene expression of AM, calcitonin receptor-like receptor (CRLR), receptor activity-modifying proteins (RAMPs), and receptor-coupling protein (RCP) in the testis, ventral prostate, seminal vesicle, and epididymis in rats aged 3, 12, and 20 months by radioimmunoassay and semiquantitative reverse transcription-polymerase chain reaction (RT-PCR). The results indicate an age-related increase in AM and its messenger RNA (mRNA) levels in the testis and decrease in the sex accessory glands. The gene expression of CRLR and RCP decreased only in the sex accessory glands. The changes in the gene expression of RAMPs suggest that the major increase was in CGRP receptors in the testis, whereas the major decreases in the ventral prostate and the seminal vesicles might be CGRP and AM receptors, respectively. The decreases in these receptors were similar in the epididymis. The results suggest possible roles of AM in the male reproductive system during aging.

Links

PubMed

Keywords

Adrenomedullin/analysis; Adrenomedullin/genetics; Adrenomedullin/physiology; Aging/metabolism; Animals; Calcitonin Receptor-Like Protein; Genitalia, Male/chemistry; Genitalia, Male/metabolism; Intracellular Signaling Peptides and Proteins/genetics; Male; Membrane Proteins/genetics; RNA, Messenger/analysis; Rats; Rats, Sprague-Dawley; Receptor Activity-Modifying Proteins; Receptors, Calcitonin/genetics; Receptors, Calcitonin Gene-Related Peptide/genetics; Testosterone/blood

Significance

Annotations

Gene product Qualifier GO Term Evidence Code with/from Aspect Extension Notes Status

RAT:ADML

involved_in

GO:0007568: aging

ECO:0000270: expression pattern evidence used in manual assertion

P

Seeded From UniProt

complete


See also

References

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