Abstract:
BACKGROUND:The aetiology of inguinal hernia includes changes in collagen turnover and metalloproteinase (MMP) expression, and direct hernia has been linked to increased MMP-2 expression. Since transforming growth factor beta1 (TGFbeta1) plays a role in tissue remodelling, this growth factor could directly affect metalloproteinase secretion and thus the proteolytic activity of these enzymes. We hypothesized that TGFbeta1 expression could also be altered in direct inguinal hernias. MATERIALS AND METHODS:Tissue specimens were obtained from the transversalis fascia (TF) of organ donors (controls; n = 10) and patients with inguinal hernia (indirect; n = 20/direct; n = 20), who were also divided into two groups according to age (20-40/41-60 years). Tissue sections were immunohistochemically labelled using anti-LAP TGFbeta1 (latent form) and anti-TGFbeta1 (active form) antibodies, and fragments of tissue were subjected to Western blot analysis. RESULTS:No significant differences in LAP-TGFbeta1 expression were detected between specimens from control and hernia patients. However, significantly higher levels of active TGFbeta1 were detected in the TF of patients with direct hernia (P < 0.05). Age affected the expression of the growth factor in its active form, and significant differences emerged between direct hernias and controls/indirect hernias only in the younger age groups. CONCLUSIONS:Our findings indicate overexpression of the active form of TGFbeta1 in the TF of young patients with direct hernia. This overexpression reflects an attempt to counterbalance the enhanced matrix degradation process observed in these patients, identifying a subset of patients requiring the use of a prosthetic material for primary hernia repair.
journal_name
Eur J Clin Investjournal_title
European journal of clinical investigationauthors
Pascual G,Corrales C,Gómez-Gil V,Buján J,Bellón JMdoi
10.1111/j.1365-2362.2007.01816.xsubject
Has Abstractpub_date
2007-06-01 00:00:00pages
516-21issue
6eissn
0014-2972issn
1365-2362pii
ECI1816journal_volume
37pub_type
杂志文章abstract:INTRODUCTION:Complement-mediated tubular injury may play an important role in the progression of renal diseases. C3d is a presumed marker of complement activation. Its precursor C3dg has been detected in the urine of patients with membranous nephropathy. However, little is known of the renal handling of C3d or its excr...
journal_title:European journal of clinical investigation
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abstract:BACKGROUND:Cancer is often caused by disturbance in the regulation and/or execution of programmed cell death (PCD, including apoptosis and autophagy). Our aim was to investigate these two pathways simultaneously in the same samples to understand further the pathological roles of PCDs in colorectal cancer. MATERIALS AN...
journal_title:European journal of clinical investigation
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journal_title:European journal of clinical investigation
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journal_title:European journal of clinical investigation
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journal_title:European journal of clinical investigation
pub_type: 杂志文章
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journal_title:European journal of clinical investigation
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journal_title:European journal of clinical investigation
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journal_title:European journal of clinical investigation
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journal_title:European journal of clinical investigation
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journal_title:European journal of clinical investigation
pub_type: 杂志文章,多中心研究
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journal_title:European journal of clinical investigation
pub_type: 临床试验,杂志文章,随机对照试验
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更新日期:1982-06-01 00:00:00
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journal_title:European journal of clinical investigation
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更新日期:2020-10-14 00:00:00
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journal_title:European journal of clinical investigation
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pub_type: 临床试验,杂志文章
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journal_title:European journal of clinical investigation
pub_type: 临床试验,杂志文章,随机对照试验
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journal_title:European journal of clinical investigation
pub_type: 临床试验,杂志文章,随机对照试验
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journal_title:European journal of clinical investigation
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journal_title:European journal of clinical investigation
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journal_title:European journal of clinical investigation
pub_type: 临床试验,杂志文章,随机对照试验
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更新日期:2004-11-01 00:00:00
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更新日期:2010-07-01 00:00:00
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journal_title:European journal of clinical investigation
pub_type: 杂志文章
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更新日期:2002-02-01 00:00:00
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journal_title:European journal of clinical investigation
pub_type: 杂志文章
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更新日期:1997-04-01 00:00:00
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journal_title:European journal of clinical investigation
pub_type: 杂志文章
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更新日期:2013-02-01 00:00:00
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journal_title:European journal of clinical investigation
pub_type: 杂志文章
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更新日期:2013-12-01 00:00:00
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journal_title:European journal of clinical investigation
pub_type: 杂志文章
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更新日期:2014-06-01 00:00:00