Age-related changes in the concentration of elastic fibers in different regions of the rabbit penis
Acta cir. bras
;
28(5): 378-384, May 2013. ilus, graf, tab
Article
in English
| LILACS
| ID: lil-674159
ABSTRACT
PURPOSE:
To investigate whether elastic fiber content in the corpus cavernosum (CC), corpus spongiosum (CS) and tunica albuginea (TA) of the rabbit penis undergoes modifications with age.METHODS:
Rabbits were sacrificed, in groups of ten animals each, at 30, 120, 240, and 730 days of age. Histological sections were obtained from the penile middle shaft and were stained with Weigert's resorsin fuchsin. The content of elastic fibers was determined using stereological methods, and was expressed as volume fraction.RESULTS:
At 730 days of age, elastic fiber content was increased by 54% (p<0.004), 78% (p<0.004), and 87% (p<0.004) in the TA, CC, and CS, respectively, compared with animals aged 30 days. After 30 days of age, the concentration gradually and significantly increased until 240 days of age. In 730-day old animals, the concentration, compared with the previous age group, was unchanged in the CC and decreased by 20% (p<0.004) in the TA.CONCLUSIONS:
Elastic fiber contents in the rabbit penis correlate with properties of penile tissues. Although after one month of age there is a gradual increase in these concentrations, in two-year old animals this trend is interrupted, which suggests that this could be an early alteration due to senescence.
Full text:
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Index:
LILACS (Americas)
Main subject:
Penis
/
Elastic Tissue
Type of study:
Prognostic study
Limits:
Animals
Language:
English
Journal:
Acta cir. bras
Journal subject:
General Surgery
/
Procedimentos Cir£rgicos Operat¢rios
Year:
2013
Type:
Article
Affiliation country:
Brazil
Institution/Affiliation country:
Federal Rural University of Rio de Janeiro/BR
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