scholarly journals Changes in muscularis propria of anterior vaginal wall in women with pelvic organ prolapse

2016 ◽  
Vol 60 (1) ◽  
Author(s):  
A. Vetuschi ◽  
A. D'Alfonso ◽  
R. Sferra ◽  
D. Zanelli ◽  
S. Pompili ◽  
...  
Keyword(s):  
Risk Factors ◽  
Smooth Muscle ◽  
Pelvic Organ Prolapse ◽  
Smooth Muscle Cells ◽  
Muscularis Propria ◽  
Muscle Cells ◽  
Pelvic Organ ◽  
Vaginal Wall ◽  
Anterior Vaginal Wall ◽  
Collagen Iii

<p>The objective<strong> </strong>of this study was to evaluate the morphological and immunohistochemical alterations of tissue removed from the upper third of anterior vaginal wall in a sample group of the female population presenting homogenous risk factors associated with Pelvic Organ Prolapse (POP). The case study consisted of 14 patients with POP and there were 10 patients in the control group. Patient selection was carried on the basis of specific criteria and all of the patients involved in the study presented one or more of the recognized POP risk factors. Samples were taken from POP patients during vaginal plastic surgery following  colpohysterectomy, and from control patients during closure of the posterior fornix following hysterectomy. Samples were processed for histological and  immunohistochemical analyses for Collagen I and Collagen III, α-Smooth Muscle Actin (α-SMA), Platelet-Derived-Growth-Factor (PDGF), matrix metalloproteinase 3 (MMP3), Caspase3. Immunofluorescence analyses for Collagen I and III and PDGF were also carried out. In prolapsed specimens our results show a disorganization of smooth muscle cells that appeared to have been displaced by an increased collagen III deposition resulting in rearrangement of the muscularis propria architecture. These findings suggest that the increase in the expression of collagen fibers in muscularis could probably due to a phenotypic switch resulting in the dedifferentiation of smooth muscle cells into myofibroblasts. These alterations could be responsible for the compromising of the dynamic functionality of the pelvic floor.</p><p><strong> </strong></p>

Morphometric analysis of smooth muscle in the anterior vaginal wall of women with pelvic organ prolapse

2002 ◽  
Vol 187 (1) ◽  
pp. 56-63 ◽  
Author(s):  
Muriel K. Boreham ◽  
Clifford Y. Wai ◽  
Rodney T. Miller ◽  
Joseph I. Schaffer ◽  
R.Ann Word
Keyword(s):  
Smooth Muscle ◽  
Pelvic Organ Prolapse ◽  
Morphometric Analysis ◽  
Pelvic Organ ◽  
Vaginal Wall ◽  
Anterior Vaginal Wall

The Role of Smooth Muscle Cells in the Pathophysiology of Pelvic Organ Prolapse

2013 ◽  
Vol 19 (5) ◽  
pp. 254-259 ◽  
Author(s):  
Shanshan Mei ◽  
Ming Ye ◽  
Laura Gil ◽  
Jianping Zhang ◽  
Yanping Zhang ◽  
...  
Keyword(s):  
Smooth Muscle ◽  
Pelvic Organ Prolapse ◽  
Smooth Muscle Cells ◽  
Muscle Cells ◽  
Pelvic Organ

scholarly journals Neurovascular alterations of muscularis propria in the human anterior vaginal wall in pelvic organ prolapse

2019 ◽  
Vol 235 (2) ◽  
pp. 281-288 ◽  
Author(s):  
R Sferra ◽  
S Pompili ◽  
A D'Alfonso ◽  
G Sabetta ◽  
E Gaudio ◽  
...  
Keyword(s):  
Pelvic Organ Prolapse ◽  
Muscularis Propria ◽  
Pelvic Organ ◽  
Vaginal Wall ◽  
Anterior Vaginal Wall

scholarly journals Immunolocalization of Advanced Glycation End Products, Mitogen Activated Protein Kinases, and Transforming Growth Factor-β/Smads in Pelvic Organ Prolapse

2018 ◽  
Vol 66 (9) ◽  
pp. 673-686 ◽  
Author(s):  
Antonella Vetuschi ◽  
Simona Pompili ◽  
Anna Gallone ◽  
Angela D’Alfonso ◽  
Maria Gabriella Carbone ◽  
...  
Keyword(s):  
Pelvic Organ Prolapse ◽  
Growth Factor ◽  
Transforming Growth Factor ◽  
Muscularis Propria ◽  
Pelvic Organ ◽  
Vaginal Wall ◽  
Collagen I ◽  
Type I ◽  
Advanced Glycation ◽  
Collagen Iii

Collagen and matrix metalloproteinases (MMP) play a pivotal role in the pathophysiology of Pelvic Organ Prolapse (POP) as a switch between type I and III collagen together with a simultaneous activation of MMPs have been observed in the vaginal wall. The aim of this study was to evaluate the Advanced Glycation End (AGE) products, ERK1/2 and transforming growth factor (TGF)-β/Smad pathway expression in muscularis propria in women with POP compared with control patients. We examined 20 patients with POP and 10 control patients treated for uterine fibromatosis. Immunohistochemical analysis using AGE, RAGE, ERK1/2, Smads-2/3, Smad-7, MMP-3, and collagen I-III, TIMP, and α-SMA were performed. Smad-2/3, Smad-7, AGE, ERK1/2, p-ERK, and p-Smad3 were also evaluated using Western-blot analysis. POP samples from the anterior vaginal wall showed disorganization of the normal muscularis architecture. In POP samples, AGE, ERK1/2, Smad-2/3, MMP-3, and collagen III were upregulated in muscularis whereas in controls, Smad-7 and collagen I were increased. The receptor for AGEs (RAGE) was mild or absent both in controls and prolapse. We demonstrated the involvement of these markers in women with POP but further studies are required to elucidate if the overexpression of these molecules could play a crucial role in the pathophysiology of POP disease.

scholarly journals Expression Collagen I and III in Anterior Vaginal Women with and without Pelvic Organ Prolapse

2014 ◽  
pp. 87-90
Author(s):  
Basyar Basyar ◽  
Trika Irianta ◽  
Syahrul Rauf
Keyword(s):  
Pelvic Organ Prolapse ◽  
Pelvic Organ ◽  
Vaginal Wall ◽  
Anterior Vaginal Wall ◽  
Collagen I ◽  
Control Group ◽  
Case Group ◽  
Significance Level ◽  
Collagen Iii ◽  
Significant Difference

Objective: To find out the expression of collagen [ and III in the anterior vaginal wall of women with and without pelvic organ prolapse (POP). Method: The research was a cross sect ional study, conducted in Dr. Wahidin Sudiro Husodo hospital and its networks from January 1, 2011 to April 1, 2012. The case group consisted of 35 women with POPlevel III and IV.The contro l group consisted of35 women without POP. The expression of collagen I and III were examined by immunohistochemical test with the stain ing of antibody of collagen I (mouse monoclonal collagen lab 90395 ) and the antibody collagen III (Mu167 4i).The data was then analyzed by using a computer statistic program with a significance level of 0.05. Result: It was found that in the group of women with POP, there were 28 cases of expression collagen III (84%), which is significantly higher than in women without POP, found in only 20 cases (58.8%), with p=0.02. Meanwhile, in the group of POP, 9.1% of subjects showed moderate expre ssion of collagen I, significantly less compared to the expressio n in the contro l group (35.3%), with p=0.007. For the ratio of collagen I and III, the result was weak in women with POP(58.5% ) while in the control group, the result was high (85.7%). Conclu sion: In terms of collagen I and III expression, there was no significant difference between the two groups. Keywords: collagen I, collagen III, pelvic organ prolapse, vaginal wall

Comparative histological analysis of anterior vaginal wall in women with pelvic organ prolapse or control subjects. A pilot study

2008 ◽  
Vol 19 (5) ◽  
pp. 723-729 ◽  
Author(s):  
Wassim Badiou ◽  
Guillaume Granier ◽  
Philippe-Jean Bousquet ◽  
Xavier Monrozies ◽  
Pierre Mares ◽  
...  
Keyword(s):  
Pelvic Organ Prolapse ◽  
Pilot Study ◽  
Histological Analysis ◽  
Pelvic Organ ◽  
Vaginal Wall ◽  
Anterior Vaginal Wall ◽  
Control Subjects
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