What is the primary cause of gangrene in diabetic patients?

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Constriction of blood vesselsNerve inflammation in the extremitiesHardening and narrowing of the arteriesNo listed causes apply

Explanation

Diabetic gangrene primarily results from atherosclerosis, which is the thickening and narrowing of arteries, leading to reduced blood flow and tissue death. Vasospasm and peripheral neuritis are not the main causes in this condition.