WFRF:(Bela G.)
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- Knowles, CH (author)
Deranged smooth muscle alpha-actin as a biomarker of intestinal pseudo-obstruction: a controlled multinational case series
- Article/chapterEnglish2004
Publisher, publication year, extent ...
- BMJ,2004
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- LIBRIS-ID:oai:lup.lub.lu.se:af403b37-b2e7-42de-93a8-1022bd70bd52
- https://lup.lub.lu.se/record/898356URI
- https://doi.org/10.1136/gut.2003.037275DOI
- http://kipublications.ki.se/Default.aspx?queryparsed=id:1944569URI
Supplementary language notes
- Language:English
- Summary in:English
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- SwePubSwePub
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- Background and aims: Chronic idiopathic intestinal pseudo-obstruction (CIIP) is a severe motility disorder associated with significant morbidity. Several histopathological ( neuropathic and myopathic) phenotypes have been described but only a single adult with jejunal smooth ( circular) muscle alpha-actin deficiency. We present a prospective multinational case series investigating smooth muscle alpha-actin deficiency as a biomarker of this disease. Methods: A total of 115 fully clinically and physiologically ( including prolonged ( 24 hour) ambulatory jejunal manometry) characterised CIIP patients from three European centres were studied. Immunohistochemical localisation of actins and other cytoskeletal proteins were performed on laparoscopic full thickness jejunal biopsies and compared with adult controls. Distribution of alpha-actin was also characterised in other gut regions and in the developing human alimentary tract. Results: Twenty eight of 115 (24%) CIIP patient biopsies had absent (n = 22) or partial ( n = 6) jejunal smooth muscle alpha-actin immunostaining in the circular muscle layer. In contrast, smooth muscle alpha-actin staining was preserved in the longitudinal muscle and in adult jejunal controls ( n = 20). Comparative study of other adult alimentary tract regions and fetal small intestine, suggested significant spatial and temporal variations in smooth muscle alpha-actin expression. Conclusions: The ability to modulate alpha-smooth muscle actin expression, evident in development, is maintained in adult life and may be influenced by disease, rendering it a valuable biomarker even in the absence of other structural abnormalities.
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- Silk, DBA (author)
- Darzi, A (author)
- Veress, BelaLund University,Lunds universitet,Patologi, Malmö,Forskargrupper vid Lunds universitet,Pathology, Malmö,Lund University Research Groups(Swepub:lu)pat-bve (author)
- Feakins, R (author)
- Raimundo, AH (author)
- Crompton, T (author)
- Browning, EC (author)
- Lindberg, GKarolinska Institutet (author)
- Martin, JE (author)
- Patologi, MalmöForskargrupper vid Lunds universitet (creator_code:org_t)
Related titles
- In:Gut: BMJ53:11, s. 1583-15891468-32880017-5749
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- Crompton, T
- Browning, EC
- Lindberg, G
- Martin, JE
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- MEDICAL AND HEALTH SCIENCES
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- Gut
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- Lund University
- Karolinska Institutet
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