Animal Models for the Study of Post-Micturition Dribble in Aged Male

Since attaining middle age, many patients suffer from the post-micturition dribble (PMD) syndrome but do not receive proper treatment. This is because the etiology and treatment mechanisms of PMD differ from conventional lower urinary tract symptoms. Several pathophysiologies have been proposed, but...

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Main Authors: Seung Hwan Jeon, Mi-Young Park
Format: Article
Language:English
Published: The Korean Society for Clinical Laboratory Science 2022-12-01
Series:Korean Journal of Clinical Laboratory Science
Subjects:
Online Access:http://www.kjcls.org/journal/view.html?doi=10.15324/kjcls.2022.54.4.307
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author Seung Hwan Jeon
Mi-Young Park
author_facet Seung Hwan Jeon
Mi-Young Park
author_sort Seung Hwan Jeon
collection DOAJ
description Since attaining middle age, many patients suffer from the post-micturition dribble (PMD) syndrome but do not receive proper treatment. This is because the etiology and treatment mechanisms of PMD differ from conventional lower urinary tract symptoms. Several pathophysiologies have been proposed, but the mechanisms we observed are the weakening of the bulbocavernosus muscle and dilation of the urethra due to atrophy of the cavernosal tissue. This study investigates the mechanism of PMD by observing anatomical changes in the corpus cavernosum and urethra. SD male rats were categorized by age into the young rats group (8 weeks old) and the old rats group (24 months or more). The ratio area of the bulbous urethra and corpus cavernosum to the total penis was statistically significant between both groups (P<0.05). Significant differences were obtained between the two groups for restored smooth muscle contents and several other parameters related to PMD mechanisms (nNOS, α-SMA) (P<0.05). The changes in size and parameters of the urethra and corpus cavernosum in young and old rats were confirmed. The results from this study are expected to contribute to the study of PMD in the future.
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spelling doaj.art-170e86e8fef84ca6a8895f217dbf0c502023-01-06T01:44:16ZengThe Korean Society for Clinical Laboratory ScienceKorean Journal of Clinical Laboratory Science1738-35442022-12-0154430731510.15324/kjcls.2022.54.4.307kjcls.2022.54.4.307Animal Models for the Study of Post-Micturition Dribble in Aged MaleSeung Hwan Jeon0Mi-Young Park1Department of Clinical Laboratory Science, Suwon Science College, Hwaseong, KoreaDepartment of Clinical Laboratory Science, Suwon Science College, Hwaseong, KoreaSince attaining middle age, many patients suffer from the post-micturition dribble (PMD) syndrome but do not receive proper treatment. This is because the etiology and treatment mechanisms of PMD differ from conventional lower urinary tract symptoms. Several pathophysiologies have been proposed, but the mechanisms we observed are the weakening of the bulbocavernosus muscle and dilation of the urethra due to atrophy of the cavernosal tissue. This study investigates the mechanism of PMD by observing anatomical changes in the corpus cavernosum and urethra. SD male rats were categorized by age into the young rats group (8 weeks old) and the old rats group (24 months or more). The ratio area of the bulbous urethra and corpus cavernosum to the total penis was statistically significant between both groups (P<0.05). Significant differences were obtained between the two groups for restored smooth muscle contents and several other parameters related to PMD mechanisms (nNOS, α-SMA) (P<0.05). The changes in size and parameters of the urethra and corpus cavernosum in young and old rats were confirmed. The results from this study are expected to contribute to the study of PMD in the future.http://www.kjcls.org/journal/view.html?doi=10.15324/kjcls.2022.54.4.307post micturition dribbleurethralower urinary tract symptoms
spellingShingle Seung Hwan Jeon
Mi-Young Park
Animal Models for the Study of Post-Micturition Dribble in Aged Male
Korean Journal of Clinical Laboratory Science
post micturition dribble
urethra
lower urinary tract symptoms
title Animal Models for the Study of Post-Micturition Dribble in Aged Male
title_full Animal Models for the Study of Post-Micturition Dribble in Aged Male
title_fullStr Animal Models for the Study of Post-Micturition Dribble in Aged Male
title_full_unstemmed Animal Models for the Study of Post-Micturition Dribble in Aged Male
title_short Animal Models for the Study of Post-Micturition Dribble in Aged Male
title_sort animal models for the study of post micturition dribble in aged male
topic post micturition dribble
urethra
lower urinary tract symptoms
url http://www.kjcls.org/journal/view.html?doi=10.15324/kjcls.2022.54.4.307
work_keys_str_mv AT seunghwanjeon animalmodelsforthestudyofpostmicturitiondribbleinagedmale
AT miyoungpark animalmodelsforthestudyofpostmicturitiondribbleinagedmale