| Title |
Expressional changes in growth and inflammatory mediators during Achilles tendon repair in diabetic rats: new insights into a possible basis for compromised healing
|
|---|---|
| Published in |
Cell and Tissue Research, May 2014
|
| DOI | 10.1007/s00441-014-1871-3 |
| Pubmed ID | |
| Authors |
Aisha S. Ahmed, Jian Li, Nicos Schizas, Mahmood Ahmed, Claes-Goran Östenson, Paul Salo, Carolyn Hewitt, David A. Hart, Paul W. Ackermann |
| Abstract |
Dysregulation of growth and inflammatory mediators might contribute to defective tissue homeostasis and healing, as commonly observed in sedentary lifestyles and in conditions such as diabetes mellitus type-2. The present study aims to assess expression changes in growth and inflammatory mediators in the intact and healing Achilles tendon of type-2 diabetic rats. The study utilized 11 male diabetic Goto-Kakizaki (GK) and 10 age- and sex-matched Wistar control rats. The right Achilles tendon was transected in all animals, whereas the left Achilles tendon remained intact. At 2 weeks post-injury, intact and injured tendons were assessed for gene expression for VEGF, Tβ-4, TGF-β1, IGF-1, COX-2, iNOS, HIF-1α, and IL-1β by quantitative reverse transcription plus the polymerase chain reaction, and their protein distribution was studied by immunolocalization. In injured tendons of diabetic GK rats, VEGF and Tβ-4 mRNA and corresponding protein levels were significantly down-regulated compared with those of injured Wistar controls. Compared with intact tendons of diabetic GK rats, TGF-β1, IGF-1, and COX-2 RNA levels were higher, whereas iNOS mRNA levels were lower in injured tendons of diabetic GK rats. Within Wistar controls, healing at 2 weeks post-injury led to significantly down-regulated VEGF and iNOS mRNA levels in injured tendons, whereas TGF-β1 and HIF-1α mRNA levels increased compared with intact tendons. Thus, dysregulation of inflammatory and growth mediators occurs in type-2 diabetes injured tendons. Our data suggest that therapeutic modulation of Tβ-4 and VEGF represent a new regenerative approach in operated, injured, or degenerative tendon diseases in diabetes. |
X Demographics
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Geographical breakdown
| Country | Count | As % |
|---|---|---|
| Australia | 1 | 50% |
| United Kingdom | 1 | 50% |
Demographic breakdown
| Type | Count | As % |
|---|---|---|
| Members of the public | 1 | 50% |
| Scientists | 1 | 50% |
Mendeley readers
The data shown below were compiled from readership statistics for 36 Mendeley readers of this research output. Click here to see the associated Mendeley record.
Geographical breakdown
| Country | Count | As % |
|---|---|---|
| Unknown | 36 | 100% |
Demographic breakdown
| Readers by professional status | Count | As % |
|---|---|---|
| Student > Master | 7 | 19% |
| Student > Bachelor | 4 | 11% |
| Student > Postgraduate | 4 | 11% |
| Student > Ph. D. Student | 4 | 11% |
| Researcher | 3 | 8% |
| Other | 7 | 19% |
| Unknown | 7 | 19% |
| Readers by discipline | Count | As % |
|---|---|---|
| Medicine and Dentistry | 13 | 36% |
| Nursing and Health Professions | 4 | 11% |
| Agricultural and Biological Sciences | 4 | 11% |
| Biochemistry, Genetics and Molecular Biology | 2 | 6% |
| Sports and Recreations | 2 | 6% |
| Other | 1 | 3% |
| Unknown | 10 | 28% |
Attention Score in Context
This research output has an Altmetric Attention Score of 1. This is our high-level measure of the quality and quantity of online attention that it has received. This Attention Score, as well as the ranking and number of research outputs shown below, was calculated when the research output was last mentioned on 18 June 2014.
All research outputs
#16,061,913
of 23,839,820 outputs
Outputs from Cell and Tissue Research
#1,468
of 2,279 outputs
Outputs of similar age
#136,573
of 229,404 outputs
Outputs of similar age from Cell and Tissue Research
#23
of 47 outputs
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