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  • Title: Retinal laser photocoagulation in diabetic patients causes prolactin, growth hormone and cortisol release.
    Author: Pontiroli AE, Baio G, Maffi P, Menchini U, Brancato R, Pozza G.
    Journal: J Endocrinol Invest; 1988 May; 11(5):389-91. PubMed ID: 3183302.
    Abstract:
    Stress of many kinds (psychological, physical, metabolic) is able to induce endocrine modifications in humans, such as growth hormone (GH), prolactin (PRL), luteinizing hormone (LH), glucagon and cortisol release. Argon laser photocoagulation of the retina (RP), the treatment of choice for diabetic retinopathy, is a painful and stressful maneuvre and represents a direct injury onto a nervous tissue. Therefore it was decided to evaluate the possible endocrine modifications induced by RP in diabetic patients affected by retinopathy. In 19 insulin-dependent diabetic patients (12 men and 7 women), RP induced cortisol release in all cases, GH and PRL release in men, but not in women, and no modification of LH and glucagon plasma levels; in 12 similar patients receiving saline infusions without RP, no endocrine modifications were observed. It is concluded that RP elicits GH, PRL and cortisol release in diabetic patients.
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