Age-related alterations in the strength and collagen content of left colon in rats.

Abstract:

:The biomechanical properties and intestinal wall composition of left colon were studied in 4-month-old, 14-month-old, and 27-month-old male rats. The hydroxyproline content and hydroxyproline concentration in old rats were increased by 36% and 26%, respectively, compared with young rats and by 20% and 17%, respectively, compared with middle-aged rats. In middle-aged rats the maximum load increased by 21%, compared with young rats. In old rats, however, the maximum load decreased by 13%, compared with middle-aged rats. Histological examination showed that the mean crypt height was 9% higher in middle-aged rats and 12% higher in old rats than in young rats. In conclusion, an accumulation of collagenous proteins was found in old rats compared with middle-aged rats and this was accompanied by a decrease in the strength, which may deteriorate the functional integrity of the left colonic wall with age.

journal_name

Int J Colorectal Dis

authors

Christensen H,Andreassen TT,Oxlund H

doi

10.1007/BF00341292

subject

Has Abstract

pub_date

1992-06-01 00:00:00

pages

85-8

issue

2

eissn

0179-1958

issn

1432-1262

journal_volume

7

pub_type

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