PMID: 11904590Mar 21, 2002Paper

Age effects on urethral striated muscle. I. Changes in number and diameter of striated muscle fibers in the ventral urethra

American Journal of Obstetrics and Gynecology
Daniele PerucchiniTripti Kataria

Abstract

This study was undertaken to test the null hypothesis that the number of striated muscle fibers in the ventral wall of the female urethra remains constant with increasing age. The urethra and surrounding tissues from 25 female cadavers, mean age 52 years (+/-SD 18, range 15-80 years), were selected for this study. Each specimen was divided along the midsagittal plane, and a Masson trichrome histologic section was prepared. A systematic count of striated muscle fibers in the ventral wall was then obtained at each decile of urethral length. A decrease in the total number of fibers within the sampled area was found with increasing age. The mean of the total fibers across all urethrae was 17,423 (+/-SD 9,624, range 4,788-35,867). Over the life span, an average of 364 fibers (2%) were lost per year (95% CI 197-531; P <.001). Mean fiber density was 671 (+/- SD 296, range 228-1374) fibers/mm2 and decreased by 13 fibers/mm2 per year (95% CI 8-17; P <.001). The mean lesser fiber diameter was 24 microm and did not change significantly with age ( P =.3). The number and density of urethral striated muscle fibers decline with age.

References

Jun 1, 1983·Clinical Physiology·G Grimby, B Saltin
Feb 1, 1981·British Journal of Urology·J A GoslingS A Thompson
Jan 1, 1983·Acta Neuropathologica·H D Schrøder, E Reske-Nielsen
Feb 1, 1983·The Anatomical Record·T M Oelrich
Jan 1, 1980·Acta Obstetricia Et Gynecologica Scandinavica·T Rud
Jan 1, 1996·Neurourology and Urodynamics·P ThindG Lose

❮ Previous
Next ❯

Citations

Oct 8, 2011·International Urogynecology Journal·Kimberly KentonLinda Brubaker
Dec 16, 2003·Obstetrics and Gynecology·Wolfgang H UmekJohn O L DeLancey
Jul 9, 2010·Srpski arhiv za celokupno lekarstvo·Ljiljana Mladenović-Segedi, Dimitrije Segedi
Nov 5, 2003·Neurourology and Urodynamics·Søren Brostrøm
Jun 27, 2012·Progrès en urologie : journal de l'Association française d'urologie et de la Société française d'urologie·K HubeauxG Amarenco
Jan 10, 2008·Taiwanese Journal of Obstetrics & Gynecology·Gin-Den Chen
Apr 30, 2010·European Journal of Obstetrics, Gynecology, and Reproductive Biology·Fabiana Roberta NunesRinaldo Roberto Jesus Guirro
Jan 12, 2008·Journal de gynécologie, obstétrique et biologie de la reproduction·X DeffieuxG Amarenco
Aug 8, 2015·Neurourology and Urodynamics·Serdar Aydın, Çağrı Arıoğlu Aydın
Jul 9, 2013·The Anatomical Record : Advances in Integrative Anatomy and Evolutionary Biology·Seh Hong LimChen-Li Cheng
Jun 11, 2011·Neurourology and Urodynamics·David StaskinJames A Ashton-Miller
Oct 6, 2009·Journal of Cellular and Molecular Medicine·Régis RocheXavier Fritel
Mar 26, 2014·International Journal of Urology : Official Journal of the Japanese Urological Association·Kojiro NishioHiroshi Okada
Jan 27, 2005·American Journal of Obstetrics and Gynecology·Kimberly KentonLinda Brubaker
Dec 17, 2014·The Australian & New Zealand Journal of Obstetrics & Gynaecology·Kylie LiversidgeHans Peter Dietz
Jan 30, 2015·BJU International·Flavia GregoriniUlrich Mehnert
Aug 4, 2015·European Journal of Obstetrics, Gynecology, and Reproductive Biology·Martino Maria ZacchèLinda Cardozo
Apr 8, 2014·Journal of Physical Therapy Science·Bo-In KimHa-Roo Kim
May 6, 2008·American Journal of Obstetrics and Gynecology·Amy ClobesDaniel M Morgan
Jan 9, 2007·The International Journal of Biochemistry & Cell Biology·A FekiO Irion
May 3, 2014·European Journal of Obstetrics, Gynecology, and Reproductive Biology·Bussara Sangsawang
Sep 17, 2013·The Journal of Urology·Yasuhiro SuminoNaoki Yoshimura
Jan 13, 2015·Journal of Materials Science. Materials in Medicine·Se Heang OhJin Ho Lee
Sep 26, 2014·International Urogynecology Journal·Stéphanie J MadillChantale Dumoulin
Jun 11, 2016·Journal of Women's Health·Liliana LosadaMonica P Mallampalli
Dec 2, 2017·Journal of Ultrasound in Medicine : Official Journal of the American Institute of Ultrasound in Medicine·Yinghua XuanQingqing Wu
Dec 22, 2017·Lower Urinary Tract Symptoms·Hiroko Yanai-InamuraKeiji Miyata
Mar 3, 2007·Obstetrics and Gynecology·Elisa Rodriguez TrowbridgeJohn O L Delancey
May 20, 2009·The Journal of Urology·Daniel M MorganJohn O L DeLancey
Jan 6, 2007·International Urogynecology Journal and Pelvic Floor Dysfunction·Pia M Teleman, Anders Mattiasson
Apr 19, 2007·The Anatomical Record : Advances in Integrative Anatomy and Evolutionary Biology·Ronald J KimMargot S Damaser
Jul 13, 2007·Neurourology and Urodynamics·Kimberly KentonLinda Brubaker
Jan 16, 2008·International Urogynecology Journal and Pelvic Floor Dysfunction·Victor FajardoMargarita Martínez-Gómez
Jun 26, 2008·International Urogynecology Journal and Pelvic Floor Dysfunction·C BetschartD Perucchini
Sep 30, 2008·International Urogynecology Journal and Pelvic Floor Dysfunction·Jorge Rodríguez-AntolínMargarita Martínez-Gómez
Nov 28, 2008·Clinical Pharmacology and Therapeutics·C E DuBeau

❮ Previous
Next ❯

Related Concepts

Trending Feeds

COVID-19

Coronaviruses encompass a large family of viruses that cause the common cold as well as more serious diseases, such as the ongoing outbreak of coronavirus disease 2019 (COVID-19; formally known as 2019-nCoV). Coronaviruses can spread from animals to humans; symptoms include fever, cough, shortness of breath, and breathing difficulties; in more severe cases, infection can lead to death. This feed covers recent research on COVID-19.

Blastomycosis

Blastomycosis fungal infections spread through inhaling Blastomyces dermatitidis spores. Discover the latest research on blastomycosis fungal infections here.

Nuclear Pore Complex in ALS/FTD

Alterations in nucleocytoplasmic transport, controlled by the nuclear pore complex, may be involved in the pathomechanism underlying multiple neurodegenerative diseases including Amyotrophic Lateral Sclerosis and Frontotemporal Dementia. Here is the latest research on the nuclear pore complex in ALS and FTD.

Applications of Molecular Barcoding

The concept of molecular barcoding is that each original DNA or RNA molecule is attached to a unique sequence barcode. Sequence reads having different barcodes represent different original molecules, while sequence reads having the same barcode are results of PCR duplication from one original molecule. Discover the latest research on molecular barcoding here.

Chronic Fatigue Syndrome

Chronic fatigue syndrome is a disease characterized by unexplained disabling fatigue; the pathology of which is incompletely understood. Discover the latest research on chronic fatigue syndrome here.

Evolution of Pluripotency

Pluripotency refers to the ability of a cell to develop into three primary germ cell layers of the embryo. This feed focuses on the mechanisms that underlie the evolution of pluripotency. Here is the latest research.

Position Effect Variegation

Position Effect Variagation occurs when a gene is inactivated due to its positioning near heterochromatic regions within a chromosome. Discover the latest research on Position Effect Variagation here.

STING Receptor Agonists

Stimulator of IFN genes (STING) are a group of transmembrane proteins that are involved in the induction of type I interferon that is important in the innate immune response. The stimulation of STING has been an active area of research in the treatment of cancer and infectious diseases. Here is the latest research on STING receptor agonists.

Microbicide

Microbicides are products that can be applied to vaginal or rectal mucosal surfaces with the goal of preventing, or at least significantly reducing, the transmission of sexually transmitted infections. Here is the latest research on microbicides.

Related Papers

Fiziologicheskiĭ zhurnal SSSR imeni I. M. Sechenova
A I NOVIKOVA
The American Journal of the Medical Sciences
F B BLOCK
© 2022 Meta ULC. All rights reserved