Efficacy of ozone therapy on visual evoked potentials in diabetic patients

Author:

Izadi Morteza,Javanbakht Mohammad,Sarafzadeh Ali,Einollahi Behzad,Futuhi Farzaneh,Vahedi Zahra,Zhao Shi,Jonaidi-Jafari Nematollah,Hosseini Mahboobeh Sadat,Nejad Javad Hosseini,Naeimi Effat,Saadat Seyed Hassan,Ghaleh Hadi Esmaeili Gouvarchin,Fazel Mozhgan,Einollahi Zahra,Cegolon Luca

Abstract

Abstract Background The involvement of the central nervous system is a frequent yet underestimated complication of diabetes mellitus. Visual evoked potentials (VEP) are a simple, sensitive, and noninvasive method for detecting early alterations in central optic pathways. The objective of this paralleled randomized controlled trial was to evaluate the impact of ozone therapy on visual pathways in diabetic patients. Methods Sixty patients with type 2 diabetes visiting clinics of Baqiyatallah university in Tehran (Iran) hospital were randomly assigned to two experimental groups: Group 1 (N = 30) undergoing a cycle of 20 sessions of systemic oxygen-ozone therapy in addition to standard therapy for metabolic control; Group 2 (N = 30)—serving as control—receiving only standard therapy against diabetes. The primary study endpoints were two VEP parameters; P100 wave latency and P100 amplitude at 3 months. Moreover, HbA1c levels were measured before the start of treatment and three months later as secondary study endpoint. Results All 60 patients completed the clinical trial. P100 latency significantly reduced at 3 months since baseline. No correlation was found between repeated measures of P100 wave latency and HbA1c (Pearson’s r = 0.169, p = 0.291). There was no significant difference between baseline values and repeated measures of P100 wave amplitude over time in either group. No adverse effects were recorded. Conclusions Ozone therapy improved the conduction of impulses in optic pathways of diabetic patients. The improved glycemic control following ozone therpay may not fully explain the reduction of P100 wave latency though; other mechanistic effects of ozone may be involved.

Publisher

Springer Science and Business Media LLC

Subject

Endocrinology, Diabetes and Metabolism,Internal Medicine

Reference70 articles.

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