Zeng YJ, Yang J, Zhao JB, Liao DH, Zhang EP, Gregersen H, Xu XH, Xu H, Xu CQ. Morphologic and biomechanical changes of rat oesophagus in experimental diabetes.
World J Gastroenterol 2004;
10:2519-23. [PMID:
15300896 PMCID:
PMC4572153 DOI:
10.3748/wjg.v10.i17.2519]
[Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
AIM: To study morphologic and biomechanical changes of oesophagus in diabetes rats.
METHODS: Diabetes was induced by a single injection of streptozotocin (STZ). The type of diabetes mellitus induced by parenteral STZ administration in rats was insulin-dependent (type I). The samples were excised and studied in vitro using a self-developed biomaterial test machine.
RESULTS: The body mass was decreased after 4 d with STZ treatment. The length of esophagus shortened after 4, 7, 14 d. The opening angle increased after 14 d. The shear, longitudinal and circumferential stiffness were obviously raised after 28 d of STZ treatment.
CONCLUSION: The changes of passive biomechanical properties reflect intra-structural alteration of tissue to a certain extent. This alteration will lead to some dysfunction of movement. For example, tension of esophageal wall will change due to some obstructive disease.
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