Answer: e) all of these except increasing oxygen delivery to cells.
Explanation:
All of the given options (a, b, c) contribute to delayed wound healing in diabetes, except for increasing oxygen delivery to cells.
a) Glycosylation refers to the process of attaching sugar molecules to proteins, which can impair their function and contribute to tissue damage and delayed wound healing in diabetes.
b) Loss of erythrocyte (red blood cell) flexibility can lead to impaired blood flow, reduced oxygen and nutrient supply to the wound site, and thus delay healing.
c) Decreased secretion of messengers, such as growth factors and cytokines, which are responsible for promoting wound healing processes, can be observed in individuals with diabetes, further slowing down the healing process.
Overall, these factors contribute to delayed wound healing in individuals with diabetes, while increasing oxygen delivery to cells would be beneficial for healing.