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Striae: morphological aspects of connective tissue
Virchows Archiv. A, Pathological Anatomy and Histology
|August 1, 1982
Summary
Abdominal striae in women show significant skin changes, including fragmented collagen and fibroblast dysfunction. These findings suggest striae result from abdominal distension leading to connective tissue abnormalities.
Area of Science:
- Dermatology
- Histopathology
- Biochemistry
Background:
- Abdominal striae (stretch marks) are common in women.
- Previous research indicates histological changes in striae, but the underlying mechanisms remain unclear.
Purpose of the Study:
- To investigate the histological and cellular modifications in abdominal striae.
- To understand the role of fibroblasts and extracellular matrix in striae formation.
Main Methods:
- Histological examination of skin biopsies from 15 women with abdominal striae.
- Comparison with normal and scarred skin samples.
- Analysis of collagen fragmentation, ground substance, and fibroblast morphology.
Main Results:
- Abdominal striae exhibit fragmented collagen and abundant ground substance.
- Fibroblasts in striae are globular, quiescent, and lack fibrillar secretion.
- These changes differ from normal and scarred skin.
Conclusions:
- Abdominal striae are characterized by fibroblastic dysfunction secondary to abdominal distension.
- Striae represent a distinct connective tissue disorder, classified as a connective dystrophy.
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