Abstract:
:To investigate vascular responses in insulin-dependent diabetic patients both with and without retinopathy, we have assessed vasodilation by forearm transcutaneous pO2 measurement after 10 min of ischemia produced by a sphygmomanometer cuff. Diabetic patients with proliferative retinopathy had a delayed vasodilatory response at 60 s (mean +/- SD pO2 = 9 +/- 3 mm Hg) compared with those having diabetes without retinopathy (15 +/- 4 mm Hg, P less than 0.01) and matched normal subjects (14 +/- 4 mm Hg, P less than 0.01). Recently diagnosed insulin-dependent diabetic patients had a very similar response (15 +/- 5 mm Hg) to matched normal subjects (15 +/- 3 mm Hg). The diminished vascular reactivity may be a consequence of microangiopathy and neuropathy, although patients with an impaired vascular response might be particularly at risk from the development of capillary closure.
journal_name
Diabetes Carejournal_title
Diabetes careauthors
Haitas B,Barnes A,Shogry ME,Weindling M,Rolfe P,Turner RCdoi
10.2337/diacare.7.1.47subject
Has Abstractpub_date
1984-01-01 00:00:00pages
47-51issue
1eissn
0149-5992issn
1935-5548journal_volume
7pub_type
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